After making all necessary preparations, Bai Feng and his companions arrived at the Primordial Secret Realm within the Primordial Hall.
According to the senior artifact spirit of the Primordial Hall, traveling from a lower-realm to a middle-realm required traversing a spacetime bridge.
However, the spacetime bridges connecting the Kunlun realm and the Cangxuan realm to the nearest middle-realm had long since been destroyed. Therefore, they could first travel to a lower-realm closest to the Kunlun realm, and then use that other lower-realm's spacetime bridge to enter the nearest middle-realm.
Chapter 890